2C2B | pdb_00002c2b

Crystallographic structure of Arabidopsis thaliana Threonine synthase complexed with pyridoxal phosphate and S-adenosylmethionine

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2c2ba_	Alpha and beta proteins (a/b)	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Threonine synthase	MOUSE-EAR CRESS (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
B	d2c2bb_	Alpha and beta proteins (a/b)	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Threonine synthase	MOUSE-EAR CRESS (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
C	d2c2bc_	Alpha and beta proteins (a/b)	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Threonine synthase	MOUSE-EAR CRESS (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
D	d2c2bd_	Alpha and beta proteins (a/b)	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Threonine synthase	MOUSE-EAR CRESS (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
E	d2c2be_	Alpha and beta proteins (a/b)	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Threonine synthase	MOUSE-EAR CRESS (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)
F	d2c2bf_	Alpha and beta proteins (a/b)	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Tryptophan synthase beta subunit-like PLP-dependent enzymes	Threonine synthase	MOUSE-EAR CRESS (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8032594	3001427	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8032594	3001427	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8032594	3001427	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8032594	3001427	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8032594	3001427	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Tryptophan synthase beta subunit-like PLP-dependent enzymes	8032594	3001427	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Glyco_hydro_32C	e2c2bA1	A: alpha bundles	X: P-loop domains-like	H: Hemagglutinin HA2 chain	T: Hemagglutinin HA2 chain	F: Glyco_hydro_32C	ECOD (develop294)
B	PALP	e2c2bB1	A: alpha bundles	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PALP	ECOD (develop294)
C	Glyco_hydro_32C	e2c2bC1	A: alpha bundles	X: P-loop domains-like	H: Hemagglutinin HA2 chain	T: Hemagglutinin HA2 chain	F: Glyco_hydro_32C	ECOD (develop294)
D	PALP	e2c2bD1	A: alpha bundles	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PALP	ECOD (develop294)
E	PALP	e2c2bE1	A: alpha bundles	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PALP	ECOD (develop294)
F	Glyco_hydro_32C	e2c2bF1	A: alpha bundles	X: P-loop domains-like	H: Hemagglutinin HA2 chain	T: Hemagglutinin HA2 chain	F: Glyco_hydro_32C	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
B	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
C	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
D	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
E	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
F	3.40.50.1100	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF00291	Pyridoxal-phosphate dependent enzyme (PALP)	Pyridoxal-phosphate dependent enzyme	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	THREONINE SYNTHASE 1, CHLOROPLASTIC	vitamin binding vitamin B6 binding pyridoxal phosphate binding ion binding binding anion binding heterocyclic compound binding small molecule binding carbon-oxygen lyase activity, acting on phosphates threonine synthase activity lyase activity catalytic activity carbon-oxygen lyase activity	developmental process multicellular organismal process meristem development meristem maintenance anatomical structure development tissue development oxoacid metabolic process sulfur amino acid metabolic process L-cysteine metabolic process L-cysteine biosynthetic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process developmental process multicellular organismal process meristem development meristem maintenance anatomical structure development tissue development oxoacid metabolic process sulfur amino acid metabolic process L-cysteine metabolic process L-cysteine biosynthetic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process sulfur compound metabolic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process L-amino acid metabolic process cysteine metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process sulfur compound biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process serine family amino acid biosynthetic process sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process aspartate family amino acid biosynthetic process L-threonine metabolic process L-threonine biosynthetic process	membrane-bounded organelle intracellular anatomical structure plastid intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure plastid stroma organelle chloroplast stroma cytoplasm chloroplast cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR036052	Tryptophan synthase beta chain-like, PALP domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR050214	Cysteine synthase/Cystathionine beta-synthase	Family
A, B, C, D, E A, B, C, D, E, F	IPR000634	Serine/threonine dehydratase, pyridoxal-phosphate-binding site	Binding Site
A, B, C, D, E A, B, C, D, E, F	IPR004450	Threonine synthase-like	Family
A, B, C, D, E A, B, C, D, E, F	IPR001926	Tryptophan synthase beta chain-like, PALP domain	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.